/* src/vm/finalizer.c - finalizer linked list and thread
- Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
- C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
- E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
- J. Wenninger, Institut f. Computersprachen - TU Wien
+ Copyright (C) 1996-2005, 2006, 2007, 2008
+ CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
This file is part of CACAO.
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- Contact: cacao@cacaojvm.org
-
- Authors: Christian Thalinger
-
- Changes:
-
- $Id: finalizer.c 4908 2006-05-12 16:49:50Z edwin $
-
*/
#include "vm/types.h"
#include "mm/memory.h"
-#include "native/jni.h"
-#include "native/include/java_lang_Thread.h"
-#include "native/include/java_lang_VMThread.h"
+
+#include "threads/lock-common.h"
+#include "threads/thread.h"
+
#include "vm/builtin.h"
#include "vm/exceptions.h"
#include "vm/global.h"
-#include "vm/options.h"
#include "vm/stringlocal.h"
-#include "vm/vm.h"
+#include "vm/vm.hpp"
+
#include "vm/jit/asmpart.h"
+#include "vmcore/options.h"
+
/* global variables ***********************************************************/
-#if defined(USE_THREADS)
-static java_lang_VMThread *finalizer_vmthread;
-static java_objectheader *lock_finalizer_thread;
+#if defined(ENABLE_THREADS)
+static java_object_t *lock_thread_finalizer;
#endif
bool finalizer_init(void)
{
-#if defined(USE_THREADS)
- lock_finalizer_thread = NEW(java_objectheader);
+ TRACESUBSYSTEMINITIALIZATION("finalizer_init");
-# if defined(NATIVE_THREADS)
- lock_init_object_lock(lock_finalizer_thread);
-# endif
+#if defined(ENABLE_THREADS)
+ lock_thread_finalizer = NEW(java_object_t);
+
+ LOCK_INIT_OBJECT_LOCK(lock_thread_finalizer);
#endif
/* everything's ok */
*******************************************************************************/
-#if defined(USE_THREADS)
+#if defined(ENABLE_THREADS)
static void finalizer_thread(void)
{
while (true) {
/* get the lock on the finalizer lock object, so we can call wait */
- builtin_monitorenter(lock_finalizer_thread);
+ LOCK_MONITOR_ENTER(lock_thread_finalizer);
- /* wait forever (0, 0) on that object till we are signaled */
+ /* wait forever on that object till we are signaled */
- lock_wait_for_object(lock_finalizer_thread, 0, 0);
+ LOCK_WAIT_FOREVER(lock_thread_finalizer);
/* leave the lock */
- builtin_monitorexit(lock_finalizer_thread);
+ LOCK_MONITOR_EXIT(lock_thread_finalizer);
+
+#if !defined(NDEBUG)
+ if (opt_DebugFinalizer)
+ log_println("[finalizer thread : status=awake]");
+#endif
/* and call the finalizers */
gc_invoke_finalizers();
+
+#if !defined(NDEBUG)
+ if (opt_DebugFinalizer)
+ log_println("[finalizer thread : status=sleeping]");
+#endif
}
}
#endif
*******************************************************************************/
-#if defined(USE_THREADS)
+#if defined(ENABLE_THREADS)
bool finalizer_start_thread(void)
{
- java_lang_Thread *t;
-
- /* create the finalizer object */
+ utf *name;
- finalizer_vmthread =
- (java_lang_VMThread *) builtin_new(class_java_lang_VMThread);
+ name = utf_new_char("Finalizer");
- if (!finalizer_vmthread)
+ if (!threads_thread_start_internal(name, finalizer_thread))
return false;
- t = (java_lang_Thread *) builtin_new(class_java_lang_Thread);
-
- t->vmThread = finalizer_vmthread;
- t->name = javastring_new_from_ascii("Finalizer");
- t->daemon = true;
- t->priority = 5;
-
- finalizer_vmthread->thread = t;
-
- /* actually start the finalizer thread */
-
- threads_start_thread(t, finalizer_thread);
-
/* everything's ok */
return true;
void finalizer_notify(void)
{
-#if defined(USE_THREADS)
+#if !defined(NDEBUG)
+ if (opt_DebugFinalizer)
+ log_println("[finalizer notified]");
+#endif
+
+#if defined(ENABLE_THREADS)
/* get the lock on the finalizer lock object, so we can call wait */
- builtin_monitorenter(lock_finalizer_thread);
+ LOCK_MONITOR_ENTER(lock_thread_finalizer);
/* signal the finalizer thread */
- lock_notify_object(lock_finalizer_thread);
+ LOCK_NOTIFY(lock_thread_finalizer);
/* leave the lock */
- builtin_monitorexit(lock_finalizer_thread);
+ LOCK_MONITOR_EXIT(lock_thread_finalizer);
#else
/* if we don't have threads, just run the finalizers */
void finalizer_run(void *o, void *p)
{
- java_objectheader *ob;
+ java_handle_t *h;
+ classinfo *c;
+
+ h = (java_handle_t *) o;
- ob = (java_objectheader *) o;
+#if !defined(ENABLE_GC_CACAO) && defined(ENABLE_HANDLES)
+ /* XXX this is only a dirty hack to make Boehm work with handles */
+
+ h = LLNI_WRAP((java_object_t *) h);
+#endif
+
+ LLNI_class_get(h, c);
+
+#if !defined(NDEBUG)
+ if (opt_DebugFinalizer) {
+ log_start();
+ log_print("[finalizer running : o=%p p=%p class=", o, p);
+ class_print(c);
+ log_print("]");
+ log_finish();
+ }
+#endif
/* call the finalizer function */
- (void) vm_call_method(ob->vftbl->class->finalizer, ob);
+ (void) vm_call_method(c->finalizer, h);
+
+#if !defined(NDEBUG)
+ if (opt_DebugFinalizer && (exceptions_get_exception() != NULL)) {
+ log_println("[finalizer exception]");
+ exceptions_print_stacktrace();
+ }
+#endif
/* if we had an exception in the finalizer, ignore it */
- *exceptionptr = NULL;
+ exceptions_clear_exception();
}
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